"We learned about the health issues and how heels affect women. When we designed the shoe, we wanted to create something interactive for the future of textile," Shahsavani says, adding Jahangiri approached her with the initial idea in 2011.

The five-inch heel can easily be transformed into a 2.5-inch heel if you feel foot pain. How? The bottom portion of the shoe's heel easily detaches and can be stored inside the remaining heel -- sort of like Matryoshka dolls. The green "pocket tongue" (check out the above picture) has sensors that will vibrate after two hours, alerting individuals to change the height of their heels (this is all in an effort to stave off foot issues).

"Adjustable heels have been done before and our focus is on the interaction. Before you develop health risks, the shoe is basically talking to you," Jahangiri says.

At the moment, the prototype of the shoe isn't complete and the girls plan to work with experts and designers to see where the design can go in the future.